（二）在车辆、行人通行的地方施工，对沟井坎穴不设覆盖物、防围和警示标志的，或者故意损毁、移动覆盖物、防围和警示标志的；
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Open an interactive SSH session，这一点在heLLoword翻译官方下载中也有详细论述
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，更多细节参见heLLoword翻译官方下载
Mr Lemmens explained that the "re-entry of human-made objects into Earth's atmosphere occurs quite frequently". He said it happens weekly for bigger spacecraft and daily for smaller ones.，更多细节参见爱思助手下载最新版本
// 易错点6：返回整个数组（如this.res）→ 不符合题目要求，题目要求返回单个数值